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Date: Wed, 2 Mar 2022 20:01:35 +0100
From: Daniel Bristot de Oliveira <bristot@...nel.org>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: Daniel Bristot de Oliveira <bristot@...nel.org>,
Jonathan Corbet <corbet@....net>,
Clark Williams <williams@...hat.com>,
Juri Lelli <juri.lelli@...hat.com>, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-trace-devel@...r.kernel.org
Subject: [PATCH V3 10/15] rtla: Add --filter support
Add --filter option. This option enables a trace event filtering of the
previous -e sys:event argument.
This option is available for all current tools.
Cc: Daniel Bristot de Oliveira <bristot@...nel.org>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Jonathan Corbet <corbet@....net>
Signed-off-by: Daniel Bristot de Oliveira <bristot@...nel.org>
---
Documentation/tools/rtla/common_options.rst | 4 ++++
tools/tracing/rtla/src/osnoise_hist.c | 20 +++++++++++++++++---
tools/tracing/rtla/src/osnoise_top.c | 18 ++++++++++++++++--
tools/tracing/rtla/src/timerlat_hist.c | 20 +++++++++++++++++---
tools/tracing/rtla/src/timerlat_top.c | 18 ++++++++++++++++--
5 files changed, 70 insertions(+), 10 deletions(-)
diff --git a/Documentation/tools/rtla/common_options.rst b/Documentation/tools/rtla/common_options.rst
index e5870b944334..afd45bae821f 100644
--- a/Documentation/tools/rtla/common_options.rst
+++ b/Documentation/tools/rtla/common_options.rst
@@ -18,6 +18,10 @@
Enable an event in the trace (**-t**) session. The argument can be a specific event, e.g., **-e** *sched:sched_switch*, or all events of a system group, e.g., **-e** *sched*. Multiple **-e** are allowed. It is only active when **-t** or **-a** are set.
+**--filter** *<filter>*
+
+ Filter the previous **-e** *sys:event* event with *<filter>*. For further information about event filtering see https://www.kernel.org/doc/html/latest/trace/events.html#event-filtering.
+
**--trigger** *<trigger>*
Enable a trace event trigger to the previous **-e** *sys:event*. For further information about event trigger see https://www.kernel.org/doc/html/latest/trace/events.html#event-triggers.
diff --git a/tools/tracing/rtla/src/osnoise_hist.c b/tools/tracing/rtla/src/osnoise_hist.c
index 3e8f89b4f306..f86b5fb94efd 100644
--- a/tools/tracing/rtla/src/osnoise_hist.c
+++ b/tools/tracing/rtla/src/osnoise_hist.c
@@ -428,8 +428,9 @@ static void osnoise_hist_usage(char *usage)
static const char * const msg[] = {
"",
" usage: rtla osnoise hist [-h] [-D] [-d s] [-a us] [-p us] [-r us] [-s us] [-S us] \\",
- " [-T us] [-t[=file]] [-e sys[:event]] [--trigger <trigger>] [-c cpu-list] [-P priority] \\",
- " [-b N] [-E N] [--no-header] [--no-summary] [--no-index] [--with-zeros]",
+ " [-T us] [-t[=file]] [-e sys[:event]] [--filter <filter>] [--trigger <trigger>] \\",
+ " [-c cpu-list] [-P priority] [-b N] [-E N] [--no-header] [--no-summary] [--no-index] \\",
+ " [--with-zeros]",
"",
" -h/--help: print this menu",
" -a/--auto: set automatic trace mode, stopping the session if argument in us sample is hit",
@@ -443,6 +444,7 @@ static void osnoise_hist_usage(char *usage)
" -D/--debug: print debug info",
" -t/--trace[=file]: save the stopped trace to [file|osnoise_trace.txt]",
" -e/--event <sys:event>: enable the <sys:event> in the trace instance, multiple -e are allowed",
+ " --filter <filter>: enable a trace event filter to the previous -e event",
" --trigger <trigger>: enable a trace event trigger to the previous -e event",
" -b/--bucket-size N: set the histogram bucket size (default 1)",
" -E/--entries N: set the number of entries of the histogram (default 256)",
@@ -512,13 +514,14 @@ static struct osnoise_hist_params
{"no-index", no_argument, 0, '2'},
{"with-zeros", no_argument, 0, '3'},
{"trigger", required_argument, 0, '4'},
+ {"filter", required_argument, 0, '5'},
{0, 0, 0, 0}
};
/* getopt_long stores the option index here. */
int option_index = 0;
- c = getopt_long(argc, argv, "a:c:b:d:e:E:Dhp:P:r:s:S:t::T:01234:",
+ c = getopt_long(argc, argv, "a:c:b:d:e:E:Dhp:P:r:s:S:t::T:01234:5:",
long_options, &option_index);
/* detect the end of the options. */
@@ -632,6 +635,17 @@ static struct osnoise_hist_params
osnoise_hist_usage("--trigger requires a previous -e\n");
}
break;
+ case '5': /* filter */
+ if (params->events) {
+ retval = trace_event_add_filter(params->events, optarg);
+ if (retval) {
+ err_msg("Error adding filter %s\n", optarg);
+ exit(EXIT_FAILURE);
+ }
+ } else {
+ osnoise_hist_usage("--filter requires a previous -e\n");
+ }
+ break;
default:
osnoise_hist_usage("Invalid option");
}
diff --git a/tools/tracing/rtla/src/osnoise_top.c b/tools/tracing/rtla/src/osnoise_top.c
index d16c7ce3e9fa..c3d75ee456a5 100644
--- a/tools/tracing/rtla/src/osnoise_top.c
+++ b/tools/tracing/rtla/src/osnoise_top.c
@@ -247,7 +247,8 @@ void osnoise_top_usage(char *usage)
static const char * const msg[] = {
" usage: rtla osnoise [top] [-h] [-q] [-D] [-d s] [-a us] [-p us] [-r us] [-s us] [-S us] \\",
- " [-T us] [-t[=file]] [-e sys[:event]] [--trigger <trigger>] [-c cpu-list] [-P priority]",
+ " [-T us] [-t[=file]] [-e sys[:event]] [--filter <filter>] [--trigger <trigger>] \\",
+ " [-c cpu-list] [-P priority]",
"",
" -h/--help: print this menu",
" -a/--auto: set automatic trace mode, stopping the session if argument in us sample is hit",
@@ -261,6 +262,7 @@ void osnoise_top_usage(char *usage)
" -D/--debug: print debug info",
" -t/--trace[=file]: save the stopped trace to [file|osnoise_trace.txt]",
" -e/--event <sys:event>: enable the <sys:event> in the trace instance, multiple -e are allowed",
+ " --filter <filter>: enable a trace event filter to the previous -e event",
" --trigger <trigger>: enable a trace event trigger to the previous -e event",
" -q/--quiet print only a summary at the end",
" -P/--priority o:prio|r:prio|f:prio|d:runtime:period : set scheduling parameters",
@@ -314,13 +316,14 @@ struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv)
{"threshold", required_argument, 0, 'T'},
{"trace", optional_argument, 0, 't'},
{"trigger", required_argument, 0, '0'},
+ {"filter", required_argument, 0, '1'},
{0, 0, 0, 0}
};
/* getopt_long stores the option index here. */
int option_index = 0;
- c = getopt_long(argc, argv, "a:c:d:De:hp:P:qr:s:S:t::T:0:",
+ c = getopt_long(argc, argv, "a:c:d:De:hp:P:qr:s:S:t::T:0:1:",
long_options, &option_index);
/* Detect the end of the options. */
@@ -415,6 +418,17 @@ struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv)
osnoise_top_usage("--trigger requires a previous -e\n");
}
break;
+ case '1': /* filter */
+ if (params->events) {
+ retval = trace_event_add_filter(params->events, optarg);
+ if (retval) {
+ err_msg("Error adding filter %s\n", optarg);
+ exit(EXIT_FAILURE);
+ }
+ } else {
+ osnoise_top_usage("--filter requires a previous -e\n");
+ }
+ break;
default:
osnoise_top_usage("Invalid option");
}
diff --git a/tools/tracing/rtla/src/timerlat_hist.c b/tools/tracing/rtla/src/timerlat_hist.c
index 765b5a313bd2..8341f38fd0b1 100644
--- a/tools/tracing/rtla/src/timerlat_hist.c
+++ b/tools/tracing/rtla/src/timerlat_hist.c
@@ -430,8 +430,9 @@ static void timerlat_hist_usage(char *usage)
char *msg[] = {
"",
" usage: [rtla] timerlat hist [-h] [-q] [-d s] [-D] [-n] [-a us] [-p us] [-i us] [-T us] [-s us] \\",
- " [-t[=file]] [-e sys[:event]] [--trigger <trigger>] [-c cpu-list] [-P priority] [-E N] \\",
- " [-b N] [--no-irq] [--no-thread] [--no-header] [--no-summary] [--no-index] [--with-zeros]",
+ " [-t[=file]] [-e sys[:event]] [--filter <filter>] [--trigger <trigger>] [-c cpu-list] \\",
+ " [-P priority] [-E N] [-b N] [--no-irq] [--no-thread] [--no-header] [--no-summary] \\",
+ " [--no-index] [--with-zeros]",
"",
" -h/--help: print this menu",
" -a/--auto: set automatic trace mode, stopping the session if argument in us latency is hit",
@@ -444,6 +445,7 @@ static void timerlat_hist_usage(char *usage)
" -D/--debug: print debug info",
" -t/--trace[=file]: save the stopped trace to [file|timerlat_trace.txt]",
" -e/--event <sys:event>: enable the <sys:event> in the trace instance, multiple -e are allowed",
+ " --filter <filter>: enable a trace event filter to the previous -e event",
" --trigger <trigger>: enable a trace event trigger to the previous -e event",
" -n/--nano: display data in nanoseconds",
" -b/--bucket-size N: set the histogram bucket size (default 1)",
@@ -519,13 +521,14 @@ static struct timerlat_hist_params
{"no-index", no_argument, 0, '4'},
{"with-zeros", no_argument, 0, '5'},
{"trigger", required_argument, 0, '6'},
+ {"filter", required_argument, 0, '7'},
{0, 0, 0, 0}
};
/* getopt_long stores the option index here. */
int option_index = 0;
- c = getopt_long(argc, argv, "a:c:b:d:e:E:Dhi:np:P:s:t::T:0123456:",
+ c = getopt_long(argc, argv, "a:c:b:d:e:E:Dhi:np:P:s:t::T:0123456:7:",
long_options, &option_index);
/* detect the end of the options. */
@@ -645,6 +648,17 @@ static struct timerlat_hist_params
timerlat_hist_usage("--trigger requires a previous -e\n");
}
break;
+ case '7': /* filter */
+ if (params->events) {
+ retval = trace_event_add_filter(params->events, optarg);
+ if (retval) {
+ err_msg("Error adding filter %s\n", optarg);
+ exit(EXIT_FAILURE);
+ }
+ } else {
+ timerlat_hist_usage("--filter requires a previous -e\n");
+ }
+ break;
default:
timerlat_hist_usage("Invalid option");
}
diff --git a/tools/tracing/rtla/src/timerlat_top.c b/tools/tracing/rtla/src/timerlat_top.c
index 76927d4e0dac..9ce5a09664bc 100644
--- a/tools/tracing/rtla/src/timerlat_top.c
+++ b/tools/tracing/rtla/src/timerlat_top.c
@@ -268,7 +268,8 @@ static void timerlat_top_usage(char *usage)
static const char *const msg[] = {
"",
" usage: rtla timerlat [top] [-h] [-q] [-a us] [-d s] [-D] [-n] [-p us] [-i us] [-T us] [-s us] \\",
- " [[-t[=file]] [-e sys[:event]] [--trigger <trigger>] [-c cpu-list] [-P priority]",
+ " [[-t[=file]] [-e sys[:event]] [--filter <filter>] [--trigger <trigger>] [-c cpu-list] \\",
+ " [-P priority]",
"",
" -h/--help: print this menu",
" -a/--auto: set automatic trace mode, stopping the session if argument in us latency is hit",
@@ -281,6 +282,7 @@ static void timerlat_top_usage(char *usage)
" -D/--debug: print debug info",
" -t/--trace[=file]: save the stopped trace to [file|timerlat_trace.txt]",
" -e/--event <sys:event>: enable the <sys:event> in the trace instance, multiple -e are allowed",
+ " --filter <command>: enable a trace event filter to the previous -e event",
" --trigger <command>: enable a trace event trigger to the previous -e event",
" -n/--nano: display data in nanoseconds",
" -q/--quiet print only a summary at the end",
@@ -340,13 +342,14 @@ static struct timerlat_top_params
{"thread", required_argument, 0, 'T'},
{"trace", optional_argument, 0, 't'},
{"trigger", required_argument, 0, '0'},
+ {"filter", required_argument, 0, '1'},
{0, 0, 0, 0}
};
/* getopt_long stores the option index here. */
int option_index = 0;
- c = getopt_long(argc, argv, "a:c:d:De:hi:np:P:qs:t::T:0:",
+ c = getopt_long(argc, argv, "a:c:d:De:hi:np:P:qs:t::T:0:1:",
long_options, &option_index);
/* detect the end of the options. */
@@ -440,6 +443,17 @@ static struct timerlat_top_params
timerlat_top_usage("--trigger requires a previous -e\n");
}
break;
+ case '1': /* filter */
+ if (params->events) {
+ retval = trace_event_add_filter(params->events, optarg);
+ if (retval) {
+ err_msg("Error adding filter %s\n", optarg);
+ exit(EXIT_FAILURE);
+ }
+ } else {
+ timerlat_top_usage("--filter requires a previous -e\n");
+ }
+ break;
default:
timerlat_top_usage("Invalid option");
}
--
2.34.1
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